PGE 331
Homework 1 Key
1. Darcy's Law Calculations. This problem deals with the one-dimensional flow of a fluid in a linear
reservoir. There are two wells on opposite ends of the reservoir that are a distance L apart. The reservoir
has thickness h and cro

Homework 8
Inferring Production Mechanisms in Hydrocarbon Reservoirs
50 points
The data in OilPortfolio.xls contains the monthly production of oil, gas and water for 7
oil reservoirs. Such a collection of reservoirs is a "portfolio". This portfolio is unr

Homework 1 Key
Reservoir Engineering: Primary Oil Recovery
20 points
Sections 1-4 and 1-5 deals with the variation of reservoir properties with depth. The
purpose of this exercise is the further explore this phenomenon with our own data set.
Used the data

Homework 10 Key
40 points
1. Start with the diffusivity equation in Cartesian coordinates and its corresponding
boundary conditions for stabilized flow.
1 P 2 P
=
t x 2
(1)
P
q
=o
o
x x = 0 Ak o
(2a)
P
q
= o
o
x x = L
Ak o
(2b)
where = 0 is semi-st

PGE323k
Homework 2
Visualizing Production Data
20 points
Visualizing production data often helps determine the producing mechanisms. The entire
purpose of this exercise is to provide such visualization by making plots of data. Several
plots. The data in C

Homework 1
Reservoir Engineering: Primary Oil Recovery
20 points
Sections 1-4 and 1-5 deals with the variation of reservoir properties with depth. The
purpose of this exercise is the further explore this phenomenon with our own data set.
Use the data set

Chapter 5Material Balances
Microscopic balances (pde)
Balances over slice in time and space
Macroscopic balances (ode or equation)
Over entire reservoir and time slice
Over entire reservoir and entire time
Microscopic Balances.
Drainage area or volum

Production Mechanisms
Chapter 2
Walsh and Lake
Recovery Mechanisms.
Primary
Recovery
Artificial Lift
Natural Flow
Pump - Gas Lift - Etc.
Secondary
Recovery
Conventional
Recovery
Pressure
Maintenance
Waterflood
Water - Gas Reinjection
Tertiary
Recovery
The

IntroductionChap 1.
Topics.
Definition of reservoir engineering
Other definitions
Reservoir traps
Production phases
Reservoir pressures, temperatures
Reservoir fluids
Units
Reservoir Engineering
A sub-discipline of petroleum
engineering that seeks to
dete

Generalized Material Balances
. . .Chap. 6
Review of equations and concepts
Total material balance equation
Undersaturated reservoirs
Gas reservoirs
Oil reservoirs
Solution gas drive
Saturated reservoirs
Undersaturated oil equations
Utility of Mat

Generalized Material
Balances . . .Chap. 6
Review of equations and concepts
Total material balance equation
Undersaturated reservoirs
Gas reservoirs
Oil reservoirs
Solution gas drive
Saturated reservoirs
Undersaturated oil equations
Utility of Mat

Homework 4
Calculating Reservoir Volumes
20 points
Objectives
To gain practice in calculating areas from a grid
To define bulk, pore, and hydrocarbon volumes
To illustrate how to calculate hydrocarbons in place.
Background
The petroleum industry is con

PGE 323k
Homework 3
Use the data in HW3Dat.xls for this problem.
1. Black Oil Calculations. (10 points)
a. Show that the two-phase oil formation volume factor for a black oil is given by
B to = o + g (si s )
B BR
R
See Fig. 4-28 and ensuing discussion.
Th

Homework 7
PGE323k
Gas Reservoir Analysis
30 points
HW7NewData.xls contains data from three regions (10, 10A, and 11) of the Washington
10 field in Michigan. These dry gas reservoir(s) are depleting volumetrically. The
reservoir temperature is 77 F and th

PGE 323k
Other Coordinate Systems
Homework #6
10 points
Though cylindrical (radial) coordinates are by far the most common way to analyze well
performance, the vicinity of which is predominately in radial flow, other coordinate
systems are better for spec

PGE 424 [Fall 2015]: Assignment #1
/ Instructor: DNE
. Answer all questions i the last slide of lecture L01.
. Investigate the geological setting of Spindletop Oil Field (era, basin, caprock,
reservoir rock, mineralogy, etc .).
. Investigate the geologica

1.
2.
. Expand (from vector form to SXSJEIEEQEEHBEQQW) the general mass balance and
PGE 424 [Fall 2016]: Assignment #2
Instructor: DNE
Compute the permeability (andyporosity) of the following media using Kozeny
Carman equation k = r2 d) / (8 32):
a. A s

CHAPTER 3.
VOLUMETRICS
Dr. Matthew Balhoff
(adapted from Dr. Larry Lake)
A Generalized Approach to Primary Hydrocarbon Recovery (Walsh and Lake)
What is Volumetrics?
Industry is constantly calculating how much hydrocarbon they
have/ how it changes with ti

PGE 424 [Fall 2016]: Assignment #2
Instructor: DNE
1. Compute the permeability (and porosity) of the following media using KozenyCarman equation k = r2 / (8 ) :
a. A solid with cross-section 10 mm x 10 mm with 2,000 straight cylindrical
pores radius 50 m

PGE 323K Reservoir Engineering I
Homework #3
Due 9/22/2016
HOMEWORK SUBMISSION GUIDELINES
1. Homework problems must be submitted in order, no exceptions. The cover sheet should
go first, the answer sheet and key tables/figures (if applicable) go after the